I suppose I could start producing a list archive that works. (-: My graphics programming skills are kind of minimal and rusty, but I'm happy to test, document or whatever in order speed up the hope of arbitrary-depth colour channels for The GIMP. Any suggestions? Cheers; Leon -- http://cyberknights.com.au/ Modern tools; traditional dedication http://plug.linux.org.au/ Member, Perth Linux User Group http://slpwa.asn.au/ Member, Linux Professionals WA http://osia.net.au/ Member, Open Source Industry Australia http://linux.org.au/ Member, Linux Australia